f(x) = (square root -x) / x^3 + 2x^2 - 3x find the domain of f
1)The square root needs to be non-negative.
Thus, for thus, .
2)The numerator cannot be zero.
Thus,
.
Since the only one of those that works is thus,
Thus,
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[Note for you, for anyone interested in anything I have to say].
These domain seem not be be well-defined, because to definied a function you need to create a domain and co-domain which you did not do here. Thus, how can you find a domain?